A fire broke out at the Ilsky oil refinery, and five people were wounded in Russia's Krasnodar region following a Ukrainian drone attack, local authorities said on Saturday.
Separately, drones targeted an industrial facility in Russia's Samara region, regional governor Vyacheslav Fedorishchev said, without identifying the enterprise.
Russia's Defense Ministry said its air defenses had destroyed 397 Ukrainian drones over multiple regions overnight.
Reuters could not independently verify battlefield reports from either side of the conflict.
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